
The MC31 was born from a desire to create a boat and class that gave owners and crew the most rewarding time on the water.
The MC31 features an unprecedented performance driven hull form, and carefully considered systems and deck layout, that enhances the sailing experience, making it ideal for One Design and Club Racing with Offshore Capabilities.
McConaghy Boats has invested considerable time and effort to ensure the boat and the class rules delivered on the objectives which other classes had failed to do.





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When the MC38 was launched 4 years ago, McConaghy Boats broke new ground, establishing a high performance, extraordinarily simple and cost effective grand prix racing yacht and class.
The MC38 was ahead of its time, creating a successful formula that others have tried to emulate. McConaghy Boats have now introduced the same easily manageable grand prix performance in an even more attainable package. The MC31 is an exciting and rewarding boat to sail within the reach of the average club racer. It is a revelation!
Key features of the MC31 design that make the performance difference:
• No rating rule constraints “rate low go slow”
• Pure clean hull with exceptional hull form stability
• Slender high aspect low drag carbon fiber keel fin and rudder blade
• Light weight hull deck and rig, heavy bulb
• High stability hull design combined with low centre of gravity allows for powerful yet surprisingly manageable sail plan
• Light weight stiff and strong structures engineered by world leading composite racing yacht specialists
• Low windage and ergonomic functional flush deck design with everything where it should be
• Large cockpit for easy crew movement
• Simple and minimalist approach to deck hardware and systems
• Design input in all areas comes from current world leading specialists with decades of experience in America’s Cups, Volvo Ocean Races and other one design classes, brought together by the experienced team at McConaghy Boats
McConaghy Boats has for five decades adhered to the mantra “to increase performance, add lightness” coined by Lotus founder Colin Chapman.
The MC38 and now the MC31 embody the spirit of Chapman and his engineering genius.

MC31 SPECIFICATIONS
LOA
Beam
Draft
Displacement
SAIL PLAN
P
E
J
CONSTRUCTION
E glass, core cell vinylester resin construction.
Designed and constructed in accordance with the requirements of ISO 12215 Category A per ISAF Offshore Special Regulations. Can comply with ISAF Cat 2
GENERAL
Engine
Fuel
Harken Deck Gear Package
McConaghy autoclave carbin fibre tiller and spinlock tiller extensions
9.15m
3.05m
2.60m
2,150kg
13.2m
3.95m
3.75m
15hp
25l